Science Reviewer Presentations #6 Environmental Concerns Flashcards
is a hydrocarbon-containing material formed naturally in the earth’s crust from the remains of dead plants and animals that is extracted and burned as a fuel
FOSSIL FUEL
the main fossil fuels are ____________
coal, crude oil and natural gas
May be burned to provide heat for use directly (such as for cooking or heating), to power engines (such as internal combustion engines in motor vehicles), or to generate electricity
FOSSIL FUEL
When fossil fuels are burned, they emit greenhouse gases like carbon dioxide that trap heat in the earth’s atmosphere and contribute to climate change
CLIMATE CHANGE
when fossil fuels are burned, they release nitrogen oxides into the atmosphere, which contribute to the formation of smog and acid rain
harmful air pollutants = sulfur dioxide, nitrogen oxides, particulate matter, carbon monoxide, and mercury
AIR POLLUTION
often fossil fuels are extracted from sedimentary rock that lies underwater which means that spills during extraction, like those caused by broken pipes, directly pollute the surrounding water and destroy local aquatic ecosystems.
WATER POLLUTION
To help cut down on air pollution from cars, you can consolidate driving trips, carpool or take public transportation, such as buses and trains. When possible, consider walking or biking instead of driving.
Minimize The Miles
Turning off lights and other electrical appliances when you’re not using them, buying equipment that uses less electricity and limiting your electricity usage.
CONSERVE ENERGY
Leading businesses are taking steps to understand and manage their greenhouse gas emissions by preparing annual greenhouse gas inventories and setting long-term targets to reduce emissions.
MANAGE AND REDUCE EMISSIONS
Buying renewable energy, can help reduce environmental impact while also providing a number of other valuable benefits.
BUY RENEWABLE ENERGY
is the thermal energy in the Earth’s crust which originates from the formation of the planet and from radioactive decay of materials in currently uncertain but possibly roughly equal proportions
GEOTHERMAL ENERGY
Geothermal plants remove water and steam from reservoirs within the earth, the land above those reservoirs can sometimes sink slowly over time
POTENTIAL FOR SURFACE INSTABILITY
this is due to alterations in the Earth’s structure as a result of digging
EARTHQUAKES
There’s no solution for Geothermal Energy?
Yes! Cuz it’s 100% environmentally friendly
is a form of renewable energy that uses the water stored in dams, as well as flowing in rivers to create electricity in hydropower plants.
HYDROELECTRIC ENERGY
the falling water rotates the blades of a _________, which then spins a generator that converts the mechanical energy of the spinning turbine into electrical energy
Turbine
The size of the reservoir created by a hydroelectric project can vary widely, depending largely on the size of the hydroelectric generators and the topography of the land
LAND USE
constructing large storage or pumped storage hydropower plants involves blocking, diverting, or changing the natural course of the river system
Wild Life Habitats
hydroelectric facilities can still have a major impact on aquatic ecosystems. It changes the concentration of nutrients, water temperature, and the river’s flow
AQUATIC ECOSYSTEMS
the most common way for adult fish to get past a dam is to use a fish ladder, a water-filled structure that allows fish to pass up and over in a series of steps
FISH LADDER
at dams and places where it is not practical to install a fish ladder, a trap and haul operation can be used to move adult fish upstream
TRAP AND HAUL
the most unusual form is an experimental “salmon cannon” — developed with DOE support — that can shoot adult salmon over a dam through a tube.
SALMON CANNON
Promotes the study and understanding of natural and human-caused processes in our natural environment. By researching and investigating complex environmental issues, students develop and enhance essential skills such as critical thinking, problem-solving, and creative thinking.
Environmental science